How severe is CVE-2021-26363?

CVE-2021-26363 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-26363 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-26363?

CVE-2021-26363 primarily affects Amd Radeon Software. In total, 34 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-26363?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-26363 published?

CVE-2021-26363 was published on 2022-05-12 and last updated on 2026-06-17.

CVE-2021-26363

CVE-2021-26363 is a medium-severity vulnerability in Amd Radeon Software with a CVSS 3.x base score of 4.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 4.4)
CVSS v2: 3.6
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Amd Radeon Software
Published: 2022-05-12
Last modified: 2026-06-17

Description

A malicious or compromised UApp or ABL could potentially change the value that the ASP uses for its reserved DRAM, to one outside of the fenced area, potentially leading to data exposure.

Frequently asked questions

What is CVE-2021-26363?: A malicious or compromised UApp or ABL could potentially change the value that the ASP uses for its reserved DRAM, to one outside of the fenced area, potentially leading to data exposure.
How severe is CVE-2021-26363?: CVE-2021-26363 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-26363 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-26363?: CVE-2021-26363 primarily affects Amd Radeon Software. In total, 34 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-26363?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-26363 published?: CVE-2021-26363 was published on 2022-05-12 and last updated on 2026-06-17.

References

https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Affected products (34)

cpe:2.3:a:amd:radeon_software:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_3_3100_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_3_3300g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_3_3300x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_3_5400u_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_9_5900hs_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_9_5900hx_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_9_5980hs_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_9_5980hx_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_3_5125c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_3_5425c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_7_3700x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_9_3900x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_9_3950x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_7_3800x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_3_5425u_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_3400g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_7_5800h_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_7_5800hs_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_7_5800u_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_7_5825c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_7_5825u_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_3450g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_3600_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_3600x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_5560u_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_5600h_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_5600u_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_5600hs_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_5600x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_5625c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_5625u_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_5700g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_5700ge_firmware:-:*:*:*:*:*:*:*

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